how to run native code in MAC OSX from Safari

I was wondering if it is possible to execute native code over MAC OS X but starting the execution from a Plug In or an Extension installed in SAFARI....

This is similar like Active x controls works in Windows OS. I wou开发者_如何学Gold like to replicate the same behaviour for Mac osx lion and snow leopard. I dont know if it could be done using Java Applets or with adobe flash maybe?

Look at FireBreath. It's c++, not objective C, but you can use objective C++ in it to call your objective c functions.

A lot of people are using it to convert WebKit plugins to NPAPI now that Safari has dropped support for the former.